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WO2016110191A1 - 一种压缩生热检测仪 - Google Patents

一种压缩生热检测仪 Download PDF

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Publication number
WO2016110191A1
WO2016110191A1 PCT/CN2015/098679 CN2015098679W WO2016110191A1 WO 2016110191 A1 WO2016110191 A1 WO 2016110191A1 CN 2015098679 W CN2015098679 W CN 2015098679W WO 2016110191 A1 WO2016110191 A1 WO 2016110191A1
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WO
WIPO (PCT)
Prior art keywords
sample
compression
lever
temperature sensor
heat generating
Prior art date
Application number
PCT/CN2015/098679
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English (en)
French (fr)
Inventor
王梦蛟
戴德盈
李夕鑫
王文刚
胡保敏
Original Assignee
怡维怡橡胶研究院有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 怡维怡橡胶研究院有限公司 filed Critical 怡维怡橡胶研究院有限公司
Priority to MYPI2017702469A priority Critical patent/MY190491A/en
Publication of WO2016110191A1 publication Critical patent/WO2016110191A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity

Definitions

  • the invention relates to a compression and heat generation detector for rubber materials, in particular to a device for detecting the phenomenon of heat generation of rubber under dynamic alternating load or strain.
  • the existing Goodrich rubber compression and heat tester applies a certain compressive load to the sample through an inert lever system, and applies periodic high frequency compression of the sample to the sample through a transmission system at room temperature or above.
  • the compression fatigue temperature rise and fatigue life of the sample were measured for a certain period of time. Suitable for vulcanized rubber with a hardness of 30-85 IRHD.
  • the principle of the existing compression heat generator is shown in Fig. 1.
  • the structure diagram is shown in Fig. 2.
  • the distance from the center line of the sample 1 to the lever fulcrum 3 is 127 ⁇ 0.5mm, and the center line of the load weight is 5 to the lever fulcrum.
  • the distance of 3 is 288 ⁇ 0.5 mm.
  • the compression load of the sample is based on the balance balance compensation principle of the balance, and the balance of the lever is maintained by the lever balance adjusting device 6.
  • the mechanical model is shown in Figure 3.
  • the shortcomings of the existing compressed heat detectors are mainly reflected in:
  • the compensation value is not accurate.
  • the compression is in the vertical direction and the compensation is the oblique direction.
  • the compression of the rubber sample is vertical, but the compensation by the lever is oblique, and the angle between the compensation direction and the vertical compression direction is ⁇ .
  • the method of punching is especially important for the size of the aperture (the hole is too large, the temperature sensitive line is easy to fall off, the hole is too small, the temperature sensing line cannot be “plugged into the center of the sample”), and the sample is subjected to high frequency during the test.
  • the temperature sensing line 7 moves from the position of a in FIG. 5 to the position of b, and the temperature line of the insertion is deviated from the center of the sample due to friction and the like, as shown in FIG. 5.
  • the present invention improves the existing Goodrich rubber compression and heat tester, and can improve the force of the sample evenly and overcome the defects of the original equipment.
  • a compression heat generation detector includes a detection unit including a vertical compression device and a vertical compensation device;
  • the vertical compression device includes a transmission motor, an eccentric adjustment mechanism, a transmission lever, and a sample upper pressure plate.
  • the transmission motor drives the rubber sample by driving the upper platen of the sample through the eccentric adjustment mechanism and the transmission lever;
  • the vertical compensation device comprises a sample chassis and a device connected to the lever, perpendicular to the lever and adjustable up and down (adjustment plate) The universal connection method is adopted between the two.
  • the sample chassis passes through the bottom of the environmental chamber and is matched with the bottom of the environmental chamber by a linear bearing.
  • the center line of the adjustment disc is in line with the center line of the sample chassis, and the adjustment disc is embedded in the cavity of the lever to adjust the amount of compression through the bottom of the disc.
  • the adjusting screw is connected to the bottom of the lever cavity, and one side of the adjusting disc is provided with a positioning pin on the inner wall of the lever cavity for positioning.
  • the invention is directed to the problem that the prior art can not accurately measure the core center temperature in real time, and further improves, and the improved device can accurately measure the internal temperature rise of the rubber.
  • a compression heat generation detector further includes a core temperature sensor synchronization device including a core temperature sensor, a slider, a guide rail, a baffle and a bearing module.
  • the present invention also makes the following improvements:
  • the core temperature sensor can be moved and adjusted in the vertical direction and the horizontal direction with respect to the sample.
  • the present invention adopts a specific design: the guide rail is disposed inside the baffle, and the core temperature sensor is It is fixed to one end of the slider by screws, and the other end of the slider is slidably engaged with the guide rail, and can freely move up and down on the guide rail with the compression of the sample, and an adjustment device for adjusting the horizontal position of the core temperature sensor is arranged outside the baffle.
  • the adjusting device comprises a push-pull handle disposed outside the baffle, a support plate connected to the baffle, a bearing module carrying the support plate, the bearing module is sleeved on the horizontal lead screw, and the horizontal lead screw is fixed by the bracket at the compression
  • the front and rear movement of the core temperature sensor can be achieved.
  • the core temperature sensor synchronizing device is located at the rear side position of the environmental tank.
  • the center temperature and the bottom temperature of the sample can be simultaneously detected.
  • the bottom temperature is measured by a temperature sensitive sheet placed at the center of the sample chassis.
  • the present invention improves the original mechanical structure, and changes the hard connection between the sample chassis and the lever 22 in the prior art to a flexible connection, that is, the prior art sample placement chassis 11 is
  • the form of the column is changed to the upper and lower two columns, and the upper and lower columns are contacted by the ball branch and the ball seat.
  • the bottom of the upper segment is a convex semicircle, and the other half connected thereto is a concave semicircle, as shown in the figure. 6 and FIG. 11, after the modification, the original sample chassis is divided into upper and lower parts, respectively, a sample chassis 12 and an adjustment plate 19 connected to the lever 22 and vertically adjusted perpendicularly to the lever 22, and a universal joint is used therebetween.
  • the lever 22 is always perpendicular to the adjustment dial 19, and the sample chassis 12 always gives the specimen a vertical upward force, as shown in FIG.
  • the center temperature and the bottom temperature of the sample 1 can be simultaneously detected, and the core temperature sensor 33 is mounted on the slider 31, and can be moved up and down along the guide rail 9 in Fig. 9 during the compression of the sample to prevent the sample 1 from being compressed.
  • the deformation core portion temperature sensor 33 is deviated from the position of the core of the sample 1, and the core temperature measuring system is located at the rear side of the environmental tank 25, as shown in FIG.
  • FIG. 1 is a schematic diagram of the working principle of a compression heat generating detector in the prior art
  • FIG. 2 is a structural diagram of a prior art compression heat detector
  • Figure 4 is a schematic view showing the top and bottom surfaces of the sample in the prior art
  • FIG. 5 is a schematic diagram showing changes in position of a temperature measuring line in the prior art
  • Figure 6 is an improvement of the stress imbalance of the sample of the prior art compression heat tester
  • FIG. 7 is a transmission diagram of the present invention.
  • Figure 8 is a diagram showing the stress analysis of the improved sample of the present invention.
  • 9 and 10 are intermediate temperature measuring devices of the compressed heat generating detector of the present invention.
  • Figure 11 is a general assembly drawing of the apparatus of the present invention.
  • 1 is the sample
  • 3 is the lever fulcrum
  • 5 is the load weight
  • 6 is the lever balance adjustment device
  • 9 is the guide rail
  • 10 is the transmission lever
  • 11 is the sample placement chassis
  • 12 is the sample chassis
  • 13 is Linear bearing
  • 15 is the pressure plate on the sample
  • 17 is the temperature sensor
  • 19 is the adjustment plate
  • 20 is the compression adjustment screw
  • 21 is the positioning pin
  • 22 is the lever
  • 24 is the temperature control system
  • 25 is the environmental box
  • 27 28 is the transmission device
  • 29 is the eccentric wheel
  • 31 is the slider
  • 32 is the screw
  • 33 is the core temperature sensor
  • 34 is the horizontal screw
  • 35 is the support plate
  • 36 is the bearing module
  • 37 is the transmission motor
  • 38 is After hanging, 39 is the front hanging, 41 is the baffle, 42 is the push-pull handle, 50 is the bracket, 60 is the hand wheel, 61 is the lever balance device, and 62 is the compression amount detecting device.
  • a compression and heat generation detector includes a detection unit including a vertical compression device and a vertical compensation device;
  • the vertical compression device includes a transmission motor 37, an eccentric adjustment mechanism, a transmission lever 10, and a sample pressurization
  • the drive motor 37 drives the sample upper platen 15 to compress the rubber sample through the eccentric adjustment mechanism and the transmission lever 10;
  • the vertical compensation device includes a sample chassis and is connected to the lever, perpendicular to the lever and adjustable up and down
  • the device (adjustment plate 19) is connected in a universal manner.
  • the sample chassis 12 passes through the bottom of the environmental chamber and is matched with the bottom of the environmental chamber 25 by a linear bearing 13.
  • the center line of the adjustment disk 19 is in line with the center line of the sample chassis 12, and the adjustment disk 19 is embedded in the cavity of the lever 22.
  • the bottom of the adjusting plate 19 is connected to the bottom of the cavity of the lever 22 by the compression amount adjusting screw 20, and the positioning pin 21 is disposed on one side of the adjusting disk 19 and the inner wall of the cavity of the lever 22.
  • the force received by the sample 1 is driven by the eccentric wheel 29 to drive the transmission devices 27 and 28 of the transmission lever 10 when the transmission motor 37 rotates, and finally the reeling of the pressure plate 15 on the sample is performed, thereby making the sample 1 Constantly compressed.
  • the lever balance adjusting device 6 drives the dial 19 to move up and down, thereby ensuring the balance of the lever 22.
  • the lever balance adjusting device 6 includes a lever balancing device 61 that detects and displays the lever state, and a compression amount detecting device 62 that detects and records the amount of compression.
  • the bottom temperature rise value of the sample 1 is measured in real time by the temperature sensing sheet 17 placed at the center of the sample chassis 12, and the sample center temperature is measured in real time by the temperature measuring system of FIG.
  • the center temperature measuring system of the sample 1 is located behind the environmental tank 25 as shown in FIG. 11, and a hole matching the temperature measuring device shutter 41 is dug in the rear side of the environmental box 25.
  • the temperature of the environmental chamber is ensured, the baffle 41 is made of heat insulating material, and the core temperature sensor 33, the slider 31, the guide rail 9, the baffle 41, the support plate 35 and the bearing module 36 constitute a temperature measuring system, and the temperature of the sample center is required.
  • the core temperature sensor 33 of the sample center temperature measuring mechanism core temperature is fixed to one end of the slider 31 by a screw 32, and the other end of the slider 31 is slidably engaged with the guide rail 9, and the slider 31 can be freely attached to the guide rail 9 with the compression of the sample. Up and down activities.
  • the upper part of the shell of the compressed heat generating device carries a parallel horizontal lead screw 34 through the bracket 50.
  • the bearing module 36 is sleeved on the horizontal lead screw 34, carries the supporting plate 35 and the temperature measuring system, and the push-pull handle is arranged outside the baffle 41 of the temperature measuring system. 42, the front and rear movement of the core temperature sensor can be achieved by adjusting the push-pull handle.
  • the core temperature sensor 33 can adjust its position in the thermostatic chamber at will. When the central temperature measurement is required, only the distance between the center of the sample chassis and the inner wall of the baffle 41 is measured, and the extension of the core temperature sensor 33 is adjusted. The length ensures that the temperature measurement point of the core temperature sensor 33 is always located at the center of the sample 1 after the punching, and the core temperature sensor 33 is made of a hard material, which can be easily inserted into the sample drilled in the small hole, and the baffle 41 tightly against the environmental box 25, these are indeed The measurement accuracy of the sample center temperature is guaranteed.
  • the internal temperature of the entire environmental chamber 25 is made uniform to reach the set temperature, and the sample 1 is placed in the environmental chamber 25 for adjustment for 30 minutes.
  • the sample chassis 12 is raised by adjusting the hand wheel 60, and the force is applied to the sample 1.
  • the presence of the pressure plate 15 on the sample causes the lever to be balanced
  • the lever balance device 61 detects and displays, and at the same time, compresses
  • the amount detecting means 62 detects and records the amount of compression to complete the static compression.
  • the adjustment dial 19 is adjusted, the sample chassis 12 is lowered, and the sample 1 is released for a certain stroke. At this time, the lever is unbalanced, and the compression amount detecting means 62 detects and records the amount of compression.
  • the transmission motor 37 is actuated. When the transmission motor 37 drives the eccentric 29 and the transmission 27 to reciprocate, the reciprocating compression test of the sample is finally carried out by the upper platen 15 of the sample connected to the transmission lever 10.
  • the sample bottom temperature sensor and the core temperature sensor 33 located at the center of the sample chassis 12 simultaneously record the temperature change by software.

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Abstract

一种压缩生热检测仪，其包括一检测单元，该检测单元包括垂直压缩装置、垂直补偿装置；所述垂直压缩装置包括一传动电机（37）、一偏心调节机构、传动杠杆（10）和上压盘（15），传动电机（37）通过偏心调节机构和传动杠杆（10）带动上压盘（15）对橡胶试样（1）进行压缩；所述垂直补偿装置包括一试样底盘（12）和试样下底盘（11），两者之间采用万向连接方式，当杠杆（22）失衡时，杠杆（22）与调节盘（19）始终垂直，试样底盘（12）始终给试样（1）垂直向上的力。

Description

一种压缩生热检测仪 技术领域
本发明涉及一种橡胶材料用压缩生热检测仪，特别是用于检测橡胶在动态交变载荷或应变下生热现象的装置。
背景技术
橡胶在动态交变载荷下的生热现象，一直是研究人员关心的指标。在实际应用中，各种轮胎和传送皮带在高速运行中的内部发热，减振、隔音材料及其结构的粘弹性阻尼作用，都涉及材料滞后效应所导致的能量损耗分析。
现有Goodrich橡胶压缩生热试验机通过一个惰性杠杆系统对试样施加一定的压缩负荷，并通过一个传动系统对试样施加具有规定振幅的周期性高频压缩，在室温或高于室温条件下测定试样在一定时间内的压缩疲劳温升和疲劳寿命。适用于硬度为30～85IRHD硫化橡胶。
现有的压缩生热仪原理如图1所示，构造图如图2所示，试样1的中心线到杠杆支点3的距离是127±0.5mm，负荷重铊5的中心线到杠杆支点3的距离是288±0.5mm。试样在负荷作用下，由上压板带动往复压缩，并由于胶料的内阻而生热。试样所受压缩负荷是采用天平杠杆平衡补偿原理，并通过杠杆平衡调整装置6来维持杠杆的平衡。其力学模型如图3所示。现有的压缩生热检测仪的缺点主要表现在：
1.因这种试验机的机械构造问题，在使用过程中常导致试样受力不均匀，天平杠杆平衡补偿试样下表面，由于杠杆支点与试样支撑点不重合，当由于前后坨的重量差导致杠杆产生一定角度α的倾斜时，造成试样下表面与承受压力的上表面不平行，与车轮承受车身重力模型，周期性承受车身压缩有偏差，不能在实验条件下准确模拟出实际工况如图4(G1的重量远大于G2)。
2.补偿值是不准确的。压缩是垂直方向，补偿是倾斜方向。同样，如图4所示，橡胶试样受到的压缩是垂直方向的，但是由杠杆产生的补偿是倾斜方向的，补偿方向与垂直压缩方向之间呈α夹角。
3.不能实时准确的测量芯部中心温度。现该构造的设备多数通过在试验完成后即刻取出试样，用针状温度传感器插入橡胶试样的方法测量内部温升，此操作会存在一定的温度损失。另有设备通过硫化时预埋感温线或将试样钻孔，将测温导线塞入试样中。硫化的方法无法确保试样在硫化过程中，温度线始终位于硫化橡胶中心(因硫化过程中试样挤压，多余的废胶移除等，会导致感温线位移变化，偏离中心线)，而采用打孔的方法，对于孔径的大小尤为重要(孔太大，感温线容易脱落，孔太小，无法将感温线“塞入”试样中心)，同时试样试验过程中经受高频振动、压缩变形的过程中，感温线7从图5中a的位置移动到b的位置，也会因摩擦等因素，导致塞入的感温线偏离试样中心，如图5所示。
发明内容
针对上述现有仪器存在的问题，本发明对现有的Goodrich橡胶压缩生热试验机进行了改进，改进后可使试样受力均匀，克服了原有设备的缺陷。
一种压缩生热检测仪，其包括一检测单元，该检测单元包括垂直压缩装置、垂直补偿装置；所述垂直压缩装置包括一传动电机、一偏心调节机构、传动杠杆和试样上压盘，传动电机通过偏心调节机构和传动杠杆带动试样上压盘对橡胶试样进行压缩；所述垂直补偿装置包括一试样底盘和与杠杆连接、垂直于杠杆并可上下调节的装置(调节盘)，两者之间采用万向连接方式。
试样底盘穿过环境箱底部并通过直线轴承与环境箱底部间隙配合，调节盘中心线与试样底盘的中心线在一条直线上，调节盘嵌入杠杆的空腔内，调节盘底部通过压缩量调节螺丝连接在杠杆空腔的底部，调节盘的一侧与杠杆空腔的内壁上设置定位销进行定位。
本发明针对现有技术不能实时准确的测量芯部中心温度的问题，进一步地做出改进，改进后的设备可以准确测量橡胶内部温升。
一种压缩生热检测仪，还包括芯部温度传感器同步装置，所述芯部温度传感器同步装置包括芯部温度传感器，滑块，导轨，挡板和轴承模块。
为了使芯部温度传感器的测温点始终位于打孔后的试样的中心位置，本发明还做了如下改进：
所述的芯部温度传感器可相对于试样在垂直方向和水平方向进行移动和调整，优选的，本发明采用了如下具体设计：所述的导轨设置在挡板内侧，所述芯部温度传感器通过螺丝固定于滑块一端，滑块另一端与导轨滑动配合，可随试样的压缩在导轨上自由上下活动，挡板外侧设置调节芯部温度传感器水平位置的调节装置。调节装置包括设置在挡板外侧的推拉把手、与挡板连接的支撑板，承载支撑板的轴承模块，所述轴承模块套设在水平丝杠上，所述水平丝杠通过支架固定在压缩生热检测仪上，可实现芯部温度传感器的前后移动。
在上述方案中，芯部温度传感器同步装置位于环境箱的后侧位置。
在上述方案中，可同时检测试样的中心温度和底部温度。
在上述方案中，所述底部温度是通过放置在试样底盘中心处的感温片测量的。
本发明的压缩生热检测仪具有如下的优点：
(1)垂直方向压缩
如图7和图11所示，当传动电机37带动偏心轮29和传动装置27往复运动时，最终会通过与传动杠杆10连接的试样上压盘15带动试样往复压缩试验。
(2)垂直方向补偿
由于设备在试样1刚放置于试验底盘12时，由于检测仪后挂砣38重于前挂砣39，杠杆 22处于失衡状态，而现有技术中试样底盘与杠杆22之间均为硬连接，两者始终垂直，当杠杆22失衡时，会造成试样上压盘15与试样底盘这两个面之间不是平行的状态，导致试样所受的力不是始终垂直向上，如图2和图4。
鉴于此，本发明将原有的机械构造进行改进，将现有技术中的试样底盘与杠杆22之间的硬连接改为柔性连接，即将现有技术中的试样放置底盘11从一根柱的形式改为上下两段柱，上下两段柱通过球支和球座接触，优选的，上一段的底部为凸出的半圆，而与之连接的另一半为凹进去的半圆，如图6和图11，改造后，将原试样底盘分为上下两部分，分别为试样底盘12和与杠杆22连接的垂直于杠杆22上下调节的调节盘19，两者之间采用万向连接的方式，当杠杆失衡时，杠杆22与调节盘19始终垂直，试样底盘12始终给试样垂直向上的力，如图8所示。
(3)可同时检测试样1的中心温度和底部温度，芯部温度传感器33安装于滑块31，可沿图9中的导轨9在试样压缩过程中保证上下移动，防止试样1压缩变形过程中因形变导芯部温度传感器33偏离试样1芯部的位置，该套芯部温度测量系统位于环境箱25的后侧，如图11。
附图说明
图1是现有技术中压缩生热检测仪工作原理图；
图2是现有技术中压缩生热检测仪构造图；
图3是现有技术中压缩生热检测仪平衡状态力学模型；
图4是现有技术中试样上下表面不平行示意图；
图5是现有技术中测温线位置变化示意图；
图6是本发明针对现有压缩生热试验机试样受力不平衡的改进；
图7是本发明的传动装置图；
图8是本发明改进后的试样受力分析图；
图9、图10是本发明压缩生热检测仪的中间测温装置；
图11是本发明设备的总装图。
图中，1为试样，3为杠杆支点，5为负荷重砣，6为杠杆平衡调整装置，9为导轨，10为传动杠杆，11为试样放置底盘，12为试样底盘，13为直线轴承，15为试样上压盘，17为感温片，19为调节盘，20为压缩量调节螺丝，21为定位销，22为杠杆，24为温控系统，25为环境箱，27、28为传动装置，29为偏心轮，31为滑块，32为螺丝，33为芯部温度传感器，34为水平丝杠，35为支撑板，36为轴承模块，37为传动电机，38为后挂砣，39为前挂砣，41为挡板，42为推拉把手，50为支架，60为手轮，61为杠杆平衡装置，62为压缩量检测装置。
具体实施方式
一种压缩生热检测仪，其包括一检测单元，该检测单元包括垂直压缩装置、垂直补偿装置；所述垂直压缩装置包括一传动电机37、一偏心调节机构、传动杠杆10和试样上压盘，传动电机37通过偏心调节机构和传动杠杆10带动试样上压盘15对橡胶试样进行压缩；所述垂直补偿装置包括一试样底盘和与杠杆连接、垂直于杠杆并可上下调节的装置(调节盘19)，两者之间采用万向连接方式。
试样底盘12穿过环境箱底部并通过直线轴承13与环境箱25底部间隙配合，调节盘19中心线与试样底盘12的中心线在一条直线上，调节盘19嵌入杠杆22的空腔内，调节盘19底部通过压缩量调节螺丝20连接在杠杆22空腔的底部，调节盘19的一侧与杠杆22空腔的内壁上设置定位销21进行定位。
在上述方案中试样1所受的力，由传动电机37转动时带动偏心轮29带动连接传动杠杆10的传动装置27和28，最终带动试样上压盘15往复运动，从而使试样1不断压缩。
在上述方案中，前挂砣39和后挂砣38分别加载在试样两端，因前后的重量差而给试样1加载一定负荷的力，试样1因受力变形，导致杠杆22失去平衡，通过杠杆平衡调整装置6带动调节盘19上下运动，从而保证杠杆22平衡，杠杆平衡调整装置6包括检测并显示杠杆状态的杠杆平衡装置61和检测并记录压缩量的压缩量检测装置62。
在上述方案中，试样1的底部温升值通过放置在试样底盘12的中心处的感温片17实时测量试样底部温升，试样中心温度通过图10的温度测量系统实现实时测量。
上述发明中，试样1的中心温度测量系统如见图11所示，位于环境箱25的后面，在环.境箱25的后侧挖开一与测温装置挡板41吻合的孔(为保证环境箱温度，挡板41采用隔热材料)，芯部温度传感器33、滑块31、导轨9、挡板41、支撑板35和轴承模块36组成测温系统，需进行试样中心温度的测量时，只需将该系统推向环境箱，使挡板41与环境箱25外壳相接触即可。
试样中心温度测量机构芯部温度的芯部温度传感器33通过螺丝32固定于滑块31一端，滑块31另一端与导轨9滑动配合，滑块31可随试样的压缩在导轨9上自由上下活动。压缩生热检测仪外壳上部通过支架50承载平行的水平丝杠34，轴承模块36套设在水平丝杠34上，承载支撑板35和测温系统，测温系统的挡板41外侧设置推拉把手42，通过调整推拉把手，可实现芯部温度传感器的前后移动。
芯部温度的传感器33可以随意调节其位于恒温室的位置，当需进行中心温度测量时，只需测量出试样底盘中心与挡板41内壁的距离，通过调节芯部温度传感器33的伸出长度，确保芯部温度传感器33的测温点始终位于打孔后的试样1的中心位置，芯部温度传感器33材质较硬，能方便的插入钻好小孔的试样内，同时挡板41紧紧的靠在环境箱25上，这些都确 保了试样中心温度的测量精度。
如图7和图11所示，当杠杆失衡状态时，试样受力将发生变化，但由于图6中试样底盘12和调节盘19的存在，使得整套系统试样受力始终垂直向上。
整套系统检测过程：
1.调整偏心轮29，使试样上压盘15处在环境箱25内部的最高点，同时调节调节盘19使试样底盘12位于环境箱25内部的最下端，给试样1预留最够的放置试样空间。
2.用钻头钻孔，钻至试样1的正中心处。
3.通过温控系统24，使整个环境箱25内部温度均匀，达到设定温度，将试样1放在环境箱25内进行调节30分钟。
4.握住推拉把手42，向远离环境箱25的方向拉，将芯部温度传感器33插入试样孔中，直至达到试样中心位置，将推拉把手42推向环境箱25的位置，直至挡板41与环境箱25紧贴，同时将试样垂直的放在试样底盘12上。
5.通过调节手轮60使试样底盘12上升，给试样1施加力，与此同时，试样上压盘15的存在使杠杆趋于平衡，杠杆平衡装置61检测并显示，同时，压缩量检测装置62检测并记录压缩量，完成静态压缩。
6.调节调节盘19，试样底盘12下降，给试样1释放一定的冲程，此时杠杆失衡，压缩量检测装置62检测并记录压缩量。
7.开动传动电机37，当传动电机37带动偏心轮29和传动装置27往复运动时，最终会通过与传动杠杆10连接的试样上压盘15带动试样往复压缩试验。
8.位于试样底盘12中心的试样底部温度传感器和芯部温度传感器33通过软件同步记录下温度变化情况。

Claims (7)

  1. 一种压缩生热检测仪，其特征在于：包括一检测单元，该检测单元包括垂直压缩装置、垂直补偿装置；所述垂直压缩装置包括一传动电机、一偏心调节机构、传动杠杆和试样上压盘，传动电机通过偏心调节机构和传动杠杆带动试样上压盘对橡胶试样进行压缩；所述垂直补偿装置包括一试样底盘和试样下底盘，两者之间采用万向连接方式。
  2. 根据权利要求1的压缩生热检测仪，其特征在于：还包括芯部温度传感器同步装置，所述芯部温度传感器同步装置包括芯部温度传感器，滑块，导轨，挡板和轴承模块。
  3. 根据权利要求2的压缩生热检测仪，其特征在于：所述导轨设置在挡板内侧，所述芯部温度传感器通过螺丝固定于滑块一端，滑块另一端与导轨滑动配合，可随试样的压缩在导轨上自由上下活动，挡板外侧设置调节芯部温度传感器水平位置的调节装置。
  4. 根据权利要求3的压缩生热检测仪，其特征在于：调节装置包括设置在挡板外侧的推拉把手、与挡板连接的支撑板，承载支撑板的轴承模块，所述轴承模块套设在水平丝杠上，所述水平丝杠通过支架固定在压缩生热检测仪上。
  5. 根据权利要求2-4任一的压缩生热检测仪，其特征在于：所述芯部温度传感器同步装置位于环境箱的后侧位置。
  6. 根据权利要求1的压缩生热检测仪，其特征在于：所述压缩生热检测仪可同时检测试样的中心温度和底部温度。
  7. 根据权利要求6的压缩生热检测仪，其特征在于：所述底部温度是通过放置在试样底盘中心处的感温片测量的。
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